Neutrophil gelatinase-associated lipid transport protein, initially a small molecular weight secreted protein found in activated neutrophils, has a powerful function as an anti-inflammatory and anti-inflammatory, in addition to being a member of the apolipid family with the function of binding and transporting hydrophobic small molecules, and is associated with inflammation, embryonic development, immune response, chemotaxis, signal transduction, and a variety of tumorigenic and developmental processes It has anti-inflammatory and anti-inflammatory effects, promotes the differentiation of renal progenitor cells to early tubular epithelial cells, and inhibits apoptosis. Modern studies have shown that neutrophil gelatinase-associated apolipoprotein is a very important reference for the early diagnosis of acute kidney injury, chronic kidney injury and diabetic kidney injury.